Excitons in SiO2: a review

Abstract In this paper, excitonic properties of crystalline and glassy SiO 2 are reviewed. Experimental spectroscopic data (optical absorption and reflection spectra, as well as spectra of luminescence and its excitation), luminescence decay kinetics at different temperatures, and photoelectric properties — photoconductivity and photoelectron emission — were used to determine excitons in SiO 2 . Information on migration of excitons was obtained on the basis of energy transport to impurity luminescence centers, the latter being detectors of quasiparticles. Determination of excitonic properties in glassy SiO 2 was based on the comparison of the observed phenomena in crystalline and glassy materials in approximately the same conditions. Structural peculiarities are analyzed comparing optical phenomena in crystalline α-quartz and cristobalite and in fused silica of four types. Models of excitons are based on propositions of chemical bond theory and total energy adiabatic potential.

[1]  P. Phariseau,et al.  On the Frenkel exciton theory of amorphous solids , 1970 .

[2]  W. Hohenau,et al.  On the Nature of Afterglow of the X-Ray Induced Luminescence in Crystalline and Glassy SiO2 , 1989, 16 January.

[3]  Linards Skuja,et al.  Luminescence in Germanium‐Doped Glassy SiO2 , 1984 .

[4]  A. Trukhin.  Study of Excitons in SiO2. Luminescent Centres as Exciton Detectors , 1980 .

[5]  M. Reilly.  Temperature dependence of the short wavelength transmittance limit of vacuum ultraviolet window materials—II theoretical, including interpretations for U.V. spectra of SiO2, GeO2, and Al2O3 , 1969 .

[6]  P. Lamy.  Optical constants of crystalline and fused quartz in the far ultraviolet. , 1977, Applied optics.

[7]  H. R. Philipp,et al.  Optical transitions in crystalline and fused quartz , 1966 .

[8]  K. Platzöder.  Temperature Effects on the Vacuum Ultraviolet Reflectance of α‐Quartz , 1968 .

[9]  D. Eastman,et al.  The band edge of amorphous SiO2 by photoinjection and photoconductivity measurements , 1971 .

[10]  Itoh,et al.  Threshold energy for photogeneration of self-trapped excitons in SiO2. , 1989, Physical review. B, Condensed matter.

[11]  A. Trukhin.  Localized states of silicon dioxide, sodium and lead silicate glasses , 1990 .

[12]  Tanimura,et al.  Polarization of the x-ray-induced blue luminescence in quartz. , 1986, Physical review. B, Condensed matter.

[13]  Griscom.  Self-trapped holes in amorphous silicon dioxide. , 1989, Physical review. B, Condensed matter.

[14]  R. C. Hughes.  Charge-Carrier Transport Phenomena in Amorphous SiO 2 : Direct Measurement of the Drift Mobility and Lifetime , 1973 .

[15]  N. Mott,et al.  Electronic Processes In Non-Crystalline Materials , 1940 .

[16]  K. Hübner,et al.  Exciton-phonon interaction in crystalline and vitreous SiO2 , 1983 .

[17]  E. Loh.  Ultraviolet reflectance of Al2O3, SiO2 and BeO , 1964 .

[18]  A. Trukhin.  Temperature Dependence of Luminescence Decay Kinetics of Self‐Trapped Excitons, Germanium and Aluminium Centres in Crystalline Quartz , 1987 .

[19]  J. Purans,et al.  EPR of copper atoms in α‐quartz , 1975 .

[20]  Takeshi Tanaka,et al.  Creation of Quasistable Lattice Defects by Electronic Excitation in SiO2 , 1983 .

[21]  R. A. Weeks,et al.  Paramagnetic Resonance of Lattice Defects in Irradiated Quartz , 1956 .

[22]  G. H Siegel,et al.  Ultraviolet spectra of silicate glasses: A review of some experimental evidence☆ , 1974 .

[23]  Stefanovich,et al.  Models of the self-trapped exciton and nearest-neighbor defect pair in SiO2. , 1990, Physical review. B, Condensed matter.

[24]  R. Knox,et al.  Theory of excitons , 1963 .

[25]  Determination of optical interband transitions in crystalline quartz from X‐ray spectroscopical data , 1972 .

[26]  L. Skuja,et al.  A new intrinsic defect in amorphous SiO2: Twofold coordinated silicon , 1984 .

[27]  M. Schlüter,et al.  Electron states in α-quartz: A self-consistent pseudopotential calculation , 1977 .

[28]  Fisher,et al.  Structure of the self-trapped exciton in quartz. , 1990, Physical review letters.

[29]  J. Rowe,et al.  Electron orbital energies of oxygen adsorbed on silicon surfaces and of silicon dioxide , 1974 .